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| author | Tony Lindgren <tony@atomide.com> | 2019-05-27 04:51:54 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2019-05-28 05:19:15 -0700 |
| commit | eec26555ae9bf69da8bfe90cacdbc85d7a23391b (patch) | |
| tree | 5bd8636931cff896b1ddd44f22c214fa52b868c3 /drivers/bus | |
| parent | bd808f9a442301e493fe0bb3168774b4da7bb605 (diff) | |
| download | lwn-eec26555ae9bf69da8bfe90cacdbc85d7a23391b.tar.gz lwn-eec26555ae9bf69da8bfe90cacdbc85d7a23391b.zip | |
bus: ti-sysc: Enable interconnect target module autoidle bit on enable
For interconnect target modules with autoidle bit wired, we need to manage
it for enable and disable.
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/ti-sysc.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 412973829adc..46a8eb469cb2 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -893,7 +893,7 @@ set_midle: /* Set MIDLE mode */ idlemodes = ddata->cfg.midlemodes; if (!idlemodes || regbits->midle_shift < 0) - return 0; + goto set_autoidle; best_mode = fls(ddata->cfg.midlemodes) - 1; if (best_mode > SYSC_IDLE_MASK) { @@ -905,6 +905,14 @@ set_midle: reg |= best_mode << regbits->midle_shift; sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], reg); +set_autoidle: + /* Autoidle bit must enabled separately if available */ + if (regbits->autoidle_shift >= 0 && + ddata->cfg.sysc_val & BIT(regbits->autoidle_shift)) { + reg |= 1 << regbits->autoidle_shift; + sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], reg); + } + return 0; } @@ -966,6 +974,9 @@ set_sidle: reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift); reg |= best_mode << regbits->sidle_shift; + if (regbits->autoidle_shift >= 0 && + ddata->cfg.sysc_val & BIT(regbits->autoidle_shift)) + reg |= 1 << regbits->autoidle_shift; sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], reg); return 0; |